The ZUMWax Plexi Blade Wax Scraper is a high-quality acrylic blade for cleaning your bases and scraping wax. This is a very sturdy, professional grade scraper with a sharp edge that easily removes wax without damaging your bases like metal scrapers can if you're not careful. When the Plexi Blade Wax Scraper gets dull, you can sharpen it by setting sand paper on a flat surface and rubbing the cutting edge while holding the scraper vertically.